Oscilații mecanice

Question 1

viteza

Answer 1

v(t)=Aωcos (ωt+f0) m/s

Question 2

v.max

Answer 2

Aω

Question 3

accelerația

Answer 3

a(t)=-Aω^2 sin(ωt+f0) m/s^2

Question 4

a.max

Answer 4

Aω^2

Question 5

Lg/Ec misc oscilat

Answer 5

y(t)=Asin(ωt+f0)
sau cu cos

Question 6

y.max

Answer 6

A

Question 7

Amplitudinea

Answer 7

A=y (m)

Question 8

Frecvența

Answer 8

V(niu)= T^ -1
V= n/Δt. (Hz)
V= 1/2π √m/k

Question 9

Pulsația

Answer 9

ω=√k/m
ω=2π/T

Question 10

Lg lui THOMPSON

Answer 10

T= 2π √m/k

Question 11

Energia oscil arm

Answer 11

E= Ec+ Ep

Question 12

poz de echil

Answer 12

t=0, y=0=> f0= 0

Question 13

cond de oprire

Answer 13

v=0
viteza

Question 14

F forta

Answer 14

F=kx
F=KA

Question 15

Fm

Answer 15

Fm= kA

Question 16

Ep

Answer 16

Ep= k x^2 /2
×=a= acceleratia

Question 17

Ec

Answer 17

Ec= m v^2 / 2
v are form

Question 18

misc oscil def

Answer 18

reprez misc de pe o parte si alta a pozitiei de echil a unui corp sau sist de corpuri

Question 19

cum e miscarea oscil

Answer 19

NU este simetrica, in cazul real, datorita frecarii cu aerul
este periodica

Question 20

perioada misc oscil T

Answer 20

timpul in care pendulul face o oscil completa

Question 21

perioada completa

Answer 21

misc oscil descrisa pt a trece de 2 ori succesiv si in ac sens printr o pozitie data

Question 22

elongatia y def

Answer 22

marimea care indica pozitia oscilatorului fata de pozitia de echil

Question 23

pendulul gravitational (/matematic)

Answer 23

e un sist alc din
fir inextensibil (cu masa neglij)
de care se suspenda un corp

Question 24

k

Answer 24

k= F/A

Question 25

energia oscil arm
E-form simpla

Answer 25

E=mω^2A^2/2
E= kA^2/2

Question 26

ω cu niu

Answer 26

ω= 2πV